Halton Youth Survey: Youth Body Mass Index (BMI) Indicator Report

Purpose of the Health Indicator Report

To provide information about BMI among grade 7 and grade 10 students in Halton Region.

Key Findings

Overall Findings

  • In 2012, 7%(±1) of grade 7 students were underweight, 73%(±1) were normal weight, 15%(±1) were overweight and 6%(±1) were obese.
  • In 2012, 3%(±1) of grade 10 students were underweight, 77%(±1) were normal weight, 15%(±1) were overweight and 5%(±1) were obese.
  • Grade 7 students were more likely to be underweight, and less likely to be normal weight compared to grade 10 students, and these differences were statistically significant. There were no statistically significant differences by grade in the percent of students who were overweight, or obese. It is important to note that these are self-reported results and individuals tend to over-report their height and under-report their weight, which results in an overestimate of the underweight category and an underestimate in the overweight and obese categories.

Grade 7 Demographic Characteristics

Overall

  • In 2012, 20%(±1) of Halton grade 7 students were overweight or obese.

Sex

  • In 2012, Halton grade 7 males [26%(±2)] were more likely than females [14%(±2)] to be overweight or obese, and this difference was statistically significant.

Municipality

  • In 2012, there were no statistically significant differences by municipality in the percent of Halton students in grade 7 who were overweight or obese.

Neighborhood Income

  • In 2012, the percent of Halton students in grade 7 who were overweight or obese decreased as neighbourhood income increased. These differences were statistically significant when comparing the middle [23%(±3)] and high [19%(±1)] income groups.

Mother's Education

  • In 2012, the percent of Halton students in grade 7 who were overweight or obese decreased as mother’s level of education‡ increased. These differences were statistically significant when comparing students whose mother’s did not graduate high school [37%(±12)] to students whose mother’s graduated college or university [19%(±1)].

Developmental Assets

  • In 2012, the percent of Halton students in grade 7 who were overweight or obese decreased as the number of Developmental Assets increased. These differences were statistically significant when comparing students with 16-20 [16%(±2)] Developmental Assets to students with 11-15 [21%(±2)], 6-10 [22%(±3)] and 0-5 [27%(±6)] Developmental Assets.

Grade 10 Demographic Characteristics

Overall

  • In 2012, 20%(±1) of Halton grade 10 students were overweight or obese.

Sex

  • In 2012, Halton grade 10 male students [28%(±2)] were more likely than females [11%(±1)] to be overweight or obese, and this difference was statistically significant.

Municipality

  • In 2012, there were no statistically significant differences by municipality in the percent of Halton students in grade 10 who were overweight or obese.

Neighborhood Income

  • In 2012, the percent of Halton students in grades 10 who were overweight or obese decreased as neighbourhood income increased. These differences were statistically significant when comparing the low [34%(±12)] and high [19%(±1)] income groups.

Mother's Education

  • In 2012, the percent of Halton students in grades 7 who were overweight or obese decreased as mother’s level of education‡ increased, however these differences were not statistically significant.

Developmental Assets

  • In 2012, the percent of Halton students in grade 10 who were overweight or obese decreased as the number of Developmental Assets increased. These differences were statistically significant when comparing students with 0-5 Developmental Assets [25%(±2)] to students with 11-15 [19%(±1)] and 16-20 [18%(±1)] Developmental Assets.